package com.dnjn.happiness.system.service.impl;

import com.dnjn.happiness.common.core.utils.SpringUtils;
import com.dnjn.happiness.common.datascope.annotation.DataScope;
import com.dnjn.happiness.common.core.constant.UserConstants;
import com.dnjn.happiness.system.api.domain.SysDept;
import com.dnjn.happiness.system.api.domain.SysRole;
import com.dnjn.happiness.system.api.domain.SysUser;
import com.dnjn.happiness.common.core.text.Convert;
import com.dnjn.happiness.common.core.exception.ServiceException;
import com.dnjn.happiness.common.security.utils.SecurityUtils;
import com.dnjn.happiness.common.core.utils.StringUtils;
import com.dnjn.happiness.common.core.utils.StringUtils;
import com.dnjn.happiness.system.domain.vo.TeamTreeSelect;
import com.dnjn.happiness.system.domain.vo.TreeSelect;
import com.dnjn.happiness.system.mapper.SysDeptMapper;
import com.dnjn.happiness.system.mapper.SysRoleMapper;
import com.dnjn.happiness.system.mapper.SysUserMapper;
import com.dnjn.happiness.system.service.ISysDeptService;
import com.dnjn.happiness.system.service.ISysSiteService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Service;
import org.springframework.util.ObjectUtils;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

/**
 * 部门管理 服务实现
 *
 * @author happy
 */
@Slf4j
@Service
public class SysDeptServiceImpl implements ISysDeptService {
    @Autowired
    private SysDeptMapper deptMapper;

    @Autowired
    private SysRoleMapper roleMapper;

    @Autowired
    private SysUserMapper userMapper;

    @Autowired
    private ISysSiteService siteService;

    /**
     * 查询部门管理数据
     *
     * @param dept 部门信息
     * @return 部门信息集合
     */
    @Override
    @DataScope(deptAlias = "d")
    public List<SysDept> selectDeptList(SysDept dept) {
        return deptMapper.selectDeptList(dept);
    }


    /**
     * 查询部门树结构信息
     *
     * @param dept 部门信息
     * @return 部门树信息集合
     */
    @Override
    public List<TreeSelect> selectDeptTreeList(SysDept dept) {
        List<SysDept> depts = SpringUtils.getAopProxy(this).selectDeptList(dept);
        return buildDeptTreeSelect(depts);
    }

    /**
     * 查询团队Team部门树结构信息
     *
     * @param dept Team部门信息
     * @return Team部门树信息集合
     */
    @Override
    public List<TeamTreeSelect> selectTeamTreeList(SysDept dept) {
        List<SysDept> depts = SpringUtils.getAopProxy(this).selectDeptList(dept);
        return buildTeamDeptTreeSelect(depts);
    }

    /**
     * 构建前端所需要树结构
     *
     * @param depts 部门列表
     * @return 树结构列表
     */
    @Override
    public List<SysDept> buildDeptTree(List<SysDept> depts) {
        List<SysDept> returnList = new ArrayList<SysDept>();
        List<Long> tempList = depts.stream().map(SysDept::getDeptId).collect(Collectors.toList());
        for (SysDept dept : depts) {
            // 如果是顶级节点, 遍历该父节点的所有子节点
            if (!tempList.contains(dept.getParentId())) {
                recursionFn(depts, dept);
                returnList.add(dept);
            }
        }
        if (returnList.isEmpty()) {
            returnList = depts;
        }
        return returnList;
    }

    /**
     *
     * @param depts 部门列表
     * @return 树结构列表
     */
    public List<SysDept> buildTeamDeptTree(List<SysDept> depts) {
        List<SysDept> returnList = new ArrayList<SysDept>();
        List<Long> tempList = depts.stream().map(SysDept::getDeptId).collect(Collectors.toList());
        for (SysDept dept : depts) {
            // 如果是顶级节点, 遍历该父节点的所有子节点
            if (!tempList.contains(dept.getParentId())) {
                recursionFn(depts, dept);
                returnList.add(dept);
            }
            //设置部门leader的头像
            if (!ObjectUtils.isEmpty(dept.getLeaderId())){
                SysUser user = userMapper.selectUserInfo(dept.getLeaderId());
                if (null != user){
                    dept.setAvatar(user.getAvatar());
                    dept.setSex(user.getSex());
                }
            }
            //查询用户列表
            dept.setUsers(userMapper.selectUserListByDeptId(dept.getDeptId()));
        }
        if (returnList.isEmpty()) {
            returnList = depts;
        }
        return returnList;
    }

    /**
     * 构建前端所需要下拉树结构
     *
     * @param depts 部门列表
     * @return 下拉树结构列表
     */
    @Override
    public List<TreeSelect> buildDeptTreeSelect(List<SysDept> depts) {
        List<SysDept> deptTrees = buildDeptTree(depts);
        return deptTrees.stream().map(TreeSelect::new).collect(Collectors.toList());
    }

    /**
     * 构建前端所需要下拉树结构
     *
     * @param depts 部门列表
     * @return 下拉树结构列表
     */
    public List<TeamTreeSelect> buildTeamDeptTreeSelect(List<SysDept> depts) {
        for (SysDept dept : depts) {
            Long leaderId = dept.getLeaderId();
            if (!ObjectUtils.isEmpty(leaderId)) {
                SysUser sysUser = userMapper.selectUserById(leaderId);
                if (null != sysUser) {
                    dept.setLeaderName(sysUser.getNickName());
                }
            }
        }
        List<SysDept> deptTrees = buildTeamDeptTree(depts);

        return deptTrees.stream().map(TeamTreeSelect::new).collect(Collectors.toList());
    }

    /**
     * 根据角色ID查询部门树信息
     *
     * @param roleId 角色ID
     * @return 选中部门列表
     */
    @Override
    public List<Long> selectDeptListByRoleId(Long roleId) {
        SysRole role = roleMapper.selectRoleById(roleId);
        return deptMapper.selectDeptListByRoleId(roleId, role.isDeptCheckStrictly());
    }

    /**
     * 根据部门ID查询信息
     *
     * @param deptId 部门ID
     * @return 部门信息
     */
    @Override
    public SysDept selectDeptById(Long deptId) {
        return deptMapper.selectDeptById(deptId);
    }

    /**
     * 根据ID查询所有子部门（正常状态）
     *
     * @param deptId 部门ID
     * @return 子部门数
     */
    @Override
    public int selectNormalChildrenDeptById(Long deptId) {
        return deptMapper.selectNormalChildrenDeptById(deptId);
    }

    /**
     * 是否存在子节点
     *
     * @param deptId 部门ID
     * @return 结果
     */
    @Override
    public boolean hasChildByDeptId(Long deptId) {
        int result = deptMapper.hasChildByDeptId(deptId);
        return result > 0;
    }

    /**
     * 查询部门是否存在用户
     *
     * @param deptId 部门ID
     * @return 结果 true 存在 false 不存在
     */
    @Override
    public boolean checkDeptExistUser(Long deptId) {
        int result = deptMapper.checkDeptExistUser(deptId);
        return result > 0;
    }

    /**
     * 校验部门名称是否唯一
     *
     * @param dept 部门信息
     * @return 结果
     */
    @Override
    public boolean checkDeptNameUnique(SysDept dept) {
        Long deptId = StringUtils.isNull(dept.getDeptId()) ? -1L : dept.getDeptId();
        SysDept info = deptMapper.checkDeptNameUnique(dept.getDeptName(), dept.getParentId());
        if (StringUtils.isNotNull(info) && info.getDeptId().longValue() != deptId.longValue()) {
            return UserConstants.NOT_UNIQUE;
        }
        return UserConstants.UNIQUE;
    }

    /**
     * 校验部门是否有数据权限
     *
     * @param deptId 部门id
     */
    @Override
    public void checkDeptDataScope(Long deptId) {
        List<Long> roleList = roleMapper.selectRoleListByUserId(SecurityUtils.getUserId());
        if (!SysUser.isAdmin(SecurityUtils.getUserId(),roleList)) {
            SysDept dept = new SysDept();
            dept.setDeptId(deptId);
            List<SysDept> depts = SpringUtils.getAopProxy(this).selectDeptList(dept);
            if (StringUtils.isEmpty(depts)) {
                throw new ServiceException("没有权限访问部门数据！");
            }
        }
    }

    /**
     * 新增保存部门信息
     *
     * @param dept 部门信息
     * @return 结果
     */
    @Override
    public int insertDept(SysDept dept) {
        SysDept info = deptMapper.selectDeptById(dept.getParentId());
        // 如果父节点不为正常状态,则不允许新增子节点
        if (!UserConstants.DEPT_NORMAL.equals(info.getStatus())) {
            throw new ServiceException("部门停用，不允许新增");
        }
        dept.setAncestors(info.getAncestors() + "," + dept.getParentId());
        int i = deptMapper.insertDept(dept);
        //如果parentId为100，同步新增厂区信息
        if (dept.getParentId().equals(100L)){

        }
        return i;
    }

    /**
     * 修改保存部门信息
     *
     * @param dept 部门信息
     * @return 结果
     */
    @Override
    public int updateDept(SysDept dept) {
        SysDept newParentDept = deptMapper.selectDeptById(dept.getParentId());
        SysDept oldDept = deptMapper.selectDeptById(dept.getDeptId());
        if (StringUtils.isNotNull(newParentDept) && StringUtils.isNotNull(oldDept)) {
            String newAncestors = newParentDept.getAncestors() + "," + newParentDept.getDeptId();
            String oldAncestors = oldDept.getAncestors();
            dept.setAncestors(newAncestors);
            updateDeptChildren(dept.getDeptId(), newAncestors, oldAncestors);
        }
        int result = deptMapper.updateDept(dept);
        if (UserConstants.DEPT_NORMAL.equals(dept.getStatus()) && StringUtils.isNotEmpty(dept.getAncestors())
                && !StringUtils.equals("0", dept.getAncestors())) {
            // 如果该部门是启用状态，则启用该部门的所有上级部门
            updateParentDeptStatusNormal(dept);
        }
        //如果parentId为100，同步新增厂区信息
        if (dept.getParentId().equals(100L)){
        }
        return result;
    }

    /**
     * 修改该部门的父级部门状态
     *
     * @param dept 当前部门
     */
    private void updateParentDeptStatusNormal(SysDept dept) {
        String ancestors = dept.getAncestors();
        Long[] deptIds = Convert.toLongArray(ancestors);
        deptMapper.updateDeptStatusNormal(deptIds);
    }

    /**
     * 修改子元素关系
     *
     * @param deptId       被修改的部门ID
     * @param newAncestors 新的父ID集合
     * @param oldAncestors 旧的父ID集合
     */
    public void updateDeptChildren(Long deptId, String newAncestors, String oldAncestors) {
        List<SysDept> children = deptMapper.selectChildrenDeptById(deptId);
        for (SysDept child : children) {
            child.setAncestors(child.getAncestors().replaceFirst(oldAncestors, newAncestors));
        }
        if (children.size() > 0) {
            deptMapper.updateDeptChildren(children);
        }
    }

    /**
     * 删除部门管理信息
     *
     * @param deptId 部门ID
     * @return 结果
     */
    @Override
    public int deleteDeptById(Long deptId) {
        //如果parentId为100,更新厂区删除状态
        SysDept dept = deptMapper.selectDeptById(deptId);
        if (dept.getParentId().equals(100L)){
        }        return deptMapper.deleteDeptById(deptId);
    }

    @Override
    public SysDept getDeptByLeaderId(Long leaderId) {
        return deptMapper.getDeptByLeaderId(leaderId);
    }

    @Override
    public List<SysDept> getDeptListByDeptId(Long deptId) {
        return deptMapper.getDeptListByDeptId(deptId);
    }

    @Override
    public SysDept selectDeptByChildUserId(Long deptId) {
        return deptMapper.selectDeptByChildUserId(deptId);
    }


    /**
     * 递归列表
     */
    private void recursionFn(List<SysDept> list, SysDept t) {
        // 得到子节点列表
        List<SysDept> childList = getChildList(list, t);
        t.setChildren(childList);
        for (SysDept tChild : childList) {
            if (hasChild(list, tChild)) {
                recursionFn(list, tChild);
            }
        }
    }

    @Override
    public List<SysDept> getBelowDeptListByDeptId(Long deptId) {
        return deptMapper.getBelowDeptListByDeptId(deptId);
    }

    /**
     * 得到子节点列表
     */
    private List<SysDept> getChildList(List<SysDept> list, SysDept t) {
        List<SysDept> tlist = new ArrayList<SysDept>();
        Iterator<SysDept> it = list.iterator();
        while (it.hasNext()) {
            SysDept n = (SysDept) it.next();
            if (StringUtils.isNotNull(n.getParentId()) && n.getParentId().longValue() == t.getDeptId().longValue()) {
                tlist.add(n);
            }
        }
        return tlist;
    }

    @Override
    public List<SysDept> selectSuperiorDeptList(Long deptId) {
        return deptMapper.selectSuperiorDeptList(deptId);
    }

    @Override
    public SysDept selectDeptByName(String deptName) {
        return deptMapper.selectDeptByName(deptName);
    }

    @Override
    public List<SysDept> getChildDeptListById(Long deptId) {
        return deptMapper.getChildDeptListById(deptId);
    }

    @Override
    public SysDept selectDeptByDeptId(Long deptId) {
        return deptMapper.selectDeptByDeptId(deptId);
    }

    @Override
    public List<TeamTreeSelect> getTeamTreeByDeptId(Long deptId) {
        List<SysDept> depts = deptMapper.getTeamTreeByDeptId(deptId);
        return buildTeamDeptTreeSelect(depts);
    }

    @Override
    public List<Long> getListAll() {
        return deptMapper.getListAll();
    }

    @Override
    public SysDept selectSuperDeptList(Long userId) {
        return deptMapper.selectSuperDeptList(userId);
    }

    private Map<Long, Long[]> deptAncestorMap;

    @Scheduled(cron = "0 0/2 * * * ? ")
    public void refreshCache() {
        log.info("start refreshing dept cache ...");
        Map<Long, Long[]> tmpMap = new HashMap<Long, Long[]>();
        List<SysDept> list = deptMapper.getAll();
        String[] ancestor;
        Long[] longAncestors;
        for (SysDept dept : list) {
            ancestor = dept.getAncestors().split(",");
            longAncestors = new Long[ancestor.length];
            for (int i = 0; i < ancestor.length; i++) {
                longAncestors[i] = Long.parseLong(ancestor[i]);
            }
            tmpMap.put(dept.getDeptId(), longAncestors);
        }
        deptAncestorMap = tmpMap;
        log.info("dept cache is refreshed.");
    }

    public Long[] getAncestor(Long deptId) {
        Long[] an = deptAncestorMap.get(deptId);
        return an;
    }

    @Override
    public  List<SysUser> queryUserIdsByDeptId(Long deptId,Long teamId,String nickName) {
        return deptMapper.queryUserIdsByDeptId(deptId,teamId,nickName);
    }

    /**
     * 判断是否有子节点
     */
    private boolean hasChild(List<SysDept> list, SysDept t) {
        return getChildList(list, t).size() > 0;
    }

    @Override
    public List<SysDept> getDeptList(SysDept dept) {
        dept.setDeptId(SecurityUtils.getLoginUser().getDeptId());
        return deptMapper.getDeptList(dept);
    }
}
